Parameters for pseudo-first order, pseudo-second order and Elovich kinetic models, and intra-particles diffusion model for MB and CV adsorption.

	Parameter	Adsorbing dye
		MB	CV
Pseudo-first order	q e(cal)	49.0	48.0
	k 1	5.08	2.60
	R 2	0.8664	0.8912
Pseudo-second order	q e(cal)	49.9	49.2
	k 2	0.23	0.11
	R 2	0.9896	0.9666
Elovich	α(×109)	6.63	0.03
	β	0.50	0.40
	R 2	0.6997	0.7716
Intra-particle diffusion
Stage 1	k d1	48.2	44.5
	C 1	4.95	0.93
	R 2	0.8491	0.9698
Stage 2	k d2	1.60	2.37
	C 2	45.5	41.1
	R 2	0.9528	0.9661
Stage 3	k d3	0.028	0.032
	C 3	49.5	49.0
	R 2	0.5653	0.7519